Device for processing sheet copying material
Abstract
Abstract APPARATUS FOR DEVELOPING SHEET MATERIAL CARRYING A RECORDING LAYER WHICH IS IRREVERSIBLY IMAGEWISE DIFFERENTIATED IN TERMS OF SOLVENT SOLUBILITY IN WHICH THE SHEET MATERIAL IS APPLIED TO A WETTED ENDLESS BELT AND IS DELIVERED THEREBY INTO FRICTIONAL RUBBING CONTACT WITH A ROTATABLE RUBBING DRUM HAVING A RESILIENT POROUS PERIPHERAL SURFACE. THE RUBBING DRUM IS WETTED WITH THE SOLVENT WHILE MAKING CONTACT WITH THE SHEET MATERIAL, AND THE PERIPHERAL SPEED OF THE DRUM IS PREFERABLY SUBSTANTIALLY HIGHER, SAY AT LEAST TEN TIMES HIGHER, THAN THE TRANSPORT SPEED OF THE SHEET MATERIAL ON THE BELT. SURPLUS SOLVENT CAN BE CAUGHT BETWEEN A TRAY ARRANGED BENEATH THE RUBBING DRUM AND THROUGH WHICH THE LOWER STRETCH OF THE ENDLESS BELT PASSES. ALL OF THE OPERATIVE COMPONENTS CAN BE ARRANGED WITHIN A HOUSING AN INLET AND OUTLET OPENINGS THEREIN FOR THE INGRESS AND EGRESS OF THE SHEET MATERIAL.
Inventors
- 👤 Emile Frans Stievenart
- 👤 Marcel Nicolas Vrancken
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |